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| 型號(hào)： | TPS5211 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | HIGH FREQUENCY PROGRAMMABLE HYSTERETIC REGULATOR CONTROLLER |
| 中文描述： | 可編程滯高頻穩(wěn)壓控制器 |
| 文件頁(yè)數(shù)： | 8/32頁(yè) |
| 文件大?。?/td> | 469K |
| 代理商： | TPS5211 |
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TPS5211
HIGH FREQUENCY PROGRAMMABLE HYSTERETIC
REGULATOR CONTROLLER
SLVS243 – SEPTEMBER 1999
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
MAX
UNIT
Supply voltage, VCC
Input voltage, BOOT to DRVGND
11.4
13
V
0
28
V
Input voltage, BOOT to BOOTLO
0
13
V
Input voltage, INHIBIT, VIDx, LODRV, PWRGD, OCP, DROOP
0
6
V
Input voltage, LOHIB, LOSENSE, IOUTLO, HISENSE
0
13
V
Input voltage, VSENSE
0
4.5
±
0.2
0.4
V
Voltage difference between ANAGND and DRVGND
Output current, VREFB
Not recommended to load VREFB other than to set hystersis since IVREFB sets slowstart time.
0
V
0
mA
electrical characteristics over recommended operating virtual junction temperature range,
V
CC
= 12 V, I
DRV
= 0 A (unless otherwise noted)
reference/voltage identification
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VREF
Cumulative reference accuracy
(see Note 2)
VCC = 11.4 to 12.6 V, 1.3 V
≤
VREF
≤
3.5 V
–0.015
0.015
V/V
VIDx
High-level input voltage
2.25
V
VIDx
Low-level input voltage
1
V
VREFB
Output voltage
IVREFB = 50
μ
A
10
μ
A
≤
IO
≤
500
μ
A
VIDx = 0 V
VREF–5mV
VREF
VREF+5mV
V
Output regulation
2
mV
VIDx
Input resistance
Input pull-up voltage divider
36
4.8
73
4.9
95
5
k
V
NOTES:
2. Cumulative reference accuracy is the combined accuracy of the reference voltage and the input offset voltage of the hysteretic
comparator. Cumulative accuracy equals the average of the high-level and low-level thresholds of the hysteretic comparator.
3. This parameter is ensured by design and is not production tested.
power good
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Undervoltage trip threshold
90
93
95
%VREF
V
μ
A
%VREF
VOL
IOH
Vhys
Low-level output voltage
IO = 5 mA
VPWRGD = 6 V
0.5
0.75
High-level input current
1
Hysteresis voltage
1.3
2.9
4.5
slowstart
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Charge current
VSLOWST = 0.5 V,
IVREFB = 65
μ
A
VSLOWST = 1 V
VVREFB = 1.3 V,
10.4
13
15.6
μ
A
Discharge current
3
mA
Comparator input offset voltage
10
mV
Comparator input bias current
See Note 3
10
100
nA
Comparator hysteresis
–7.5
7.5
mV
NOTE 3: This parameter is ensured by design and is not production tested.
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